Home / 11,128.10-16,687.29-3,335.36

Finding the Fourth Proportional to 11,128.10, 16,687.29 and 3,335.36

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Solution

The fourth proportional to 11,128.10, 16,687.29 and 3,335.36 is: 5,001.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,128.10 : 16,687.29 = 3,335.36 : x
  2. Step 2: Convert to fraction form
    11,128.10/16,687.29 = 3,335.36/x
  3. Step 3: Cross multiply
    11,128.10x = 16,687.29 × 3,335.36
  4. Step 4: Simplify right side
    11,128.10x = 55,658,119.57
  5. Step 5: Solve for x
    x = 55,658,119.57/11,128.10
  6. Step 6: Final answer
    x = 5,001.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.